- WLUG - wlug.mailman3.com

Fuse and other users
by Jamie Guinan 15 Dec '06

15 Dec '06

The other night I was trying to find the code where FUSE [dis]allowed other users to access files, but I couldn't remember where it was. Found it in fs/fuse/dir.c, /* ... * For this reason only those processes can call into the filesystem, * for which the owner of the mount has ptrace privilege. This * excludes processes started by other users, suid or sgid processes. */ static int fuse_allow_task(struct fuse_conn *fc, struct task_struct *task) { if (fc->flags & FUSE_ALLOW_OTHER) return 1; if (task->euid == fc->user_id && task->suid == fc->user_id && task->uid == fc->user_id && task->egid == fc->group_id && task->sgid == fc->group_id && task->gid == fc->group_id) return 1; return 0; } The FUSE_ALLOW_OTHER flag is set when you invoke a fuse program like sshfs with "-o allow_other". -Jamie

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Fuse "slides", other notes
by Jamie Guinan 14 Dec '06

14 Dec '06

FUSE presentation, http://www.bluebutton.com/wlug/fuse-presentation/index.html Thanks for putting up with the delays due to my ill-preparedness in forgetting my port-replicator, and big thanks (again) to Frank S. for hooking me up with the Mac laptop. Before we settled on using the Mac, I was going to try this, http://www.karlrunge.com/x11vnc/ but it was slow to install and I didn't want to delay the presentation any further. It lets you export your whole X display over VNC. I just tried it on a system here, and it does work - in fact, if you run the viewer on the same host, you get an "infinite hall of mirrors effect", like pointing a webcam at your monitor, http://www.bluebutton.com/wlug/x11vnc-hom.png A useful tool for remote access, AND for Cthulhu to inflict non-euclidean madness on X11 users! :) Happy holidays all! -Jamie

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[Fwd: Immediate Need: Senior Software Engineer]
by Arllen 13 Dec '06

13 Dec '06

I got these job postings from a recruiter I keep in touch with. Both jobs are for software engineers with Linux/Unix experience. Arllen -------- Original Message -------- Subject: Immediate Need: Senior Software Engineer Date: Mon, 11 Dec 2006 13:19:19 -0600 From: General Employment Enterprises, Inc. <wob(a)genp.com> To: <arllen(a)earthlink.net> I have two excellent perm opportunities for a Senior Software Engineer that are a high priority for my client. They make a Software Intrusion Detection Product. I pasted a brief description below for both positions. If interested give me a call anytime from 7 AM till 5 PM. Dewayne Palm General Employment 781-938-7950 dpalm(a)genp.com ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Network Application Software Engineer Our client is an exciting software company with a suite of applications that protect some of the largest networks in the world. With a client base of Fortune 250 customers they make network behavioral analysis software that identifies potential threats by understanding how normal network traffic acts. The Network Application Software Engineer will work in the corporate offices (Boston) and will report to the VP of Engineering. This is a full life cycle product development position where you will have the opportunity to get involved in everything from requirements gathering through coding and support. If you are looking for a start up environment where you can really make an impact and you are looking to work with some of the coolest technology with some of the brightest people than this is the place for you. Pick up the phone and call one of our recruiters today. Requires: 1. C++ 2. Perl 3. Linux/Unix 4. Systems Programming including Network APIs, multithreading, memory mapping...) Plusses: 1. TCP/IP 2. Relational Databases 3. Product Development 4. Additional scripting languages. 5. Excellent Mathematics background ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++ Description: GUI Software Engineer Our client is an exciting software company with a suite of applications that protect some of the largest networks in the world. With a client base of Fortune 250 customers they make network behavioral analysis software that identifies potential threats by understanding how normal network traffic acts. The GUI Software Engineer will work with the product development team and create user-friendly front-ends for their suite of applications. You will need to be comfortable working with customers and have a solid knowledge of PHP, Perl and JavaScript (other scripting languages would be a plus.) All development is done in a Unix/Linux environment. A solid mathematics background and knowledge of TCP/IP is very helpful. Requires: 1. PHP, Perl and JavaScript 2. Linux/Unix Plusses: 1. Solid knowledge of TCP/IP

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Re: [Wlug] REMINDER: Meeting Wed 7:00 PM
by Gregory Avedissian 12 Dec '06

12 Dec '06

Hi Andy, If you still want to get rid of your 36G scsi drive, I'm still interested in giving it a new home. Thanks. Greg

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kernel / video problem
by Bill Mills-Curran 12 Dec '06

12 Dec '06

Some kind of email loop started on my system yesterday that generated a huge inbox (> 20 GB) on my system. It was detecting a relay loop and then emailing the error which triggered another one. Each email was larger than the last because it contained an account of all the previous errors. After cleaning everything up, I rebooted because some processes had failed due to lack of memory. After rebooting to runlevel 5, I could not get back to graphics mode, at least a visible graphics screen. Although I can sometimes get a graphics screen showing boot progress, it never gets to the splash screen. Everything from the text/console screens looks normal. I have not found any errors in the system log. I've tried switching monitors, and get the same result. Now I've noticed errors in my logwatch email for the last 2 days (same error twice): --------------------- Kernel Begin ------------------------ WARNING: Kernel Errors Present [<c01037ef>] error_code+0x4f/0x54 ...: 69 Time(s) [<c0313190>] do_page_fault+0x0/0x630 [<c01037ef>] error_code+0x4f/0x54 ...: 62 Time(s) Normal free:3224kB min:2776kB low:3468kB high:4164kB active:206364kB inactive:206236kB present:498944kx630 [<c01037ef>] error_code+0x4f/0x54 ...: 1 Time(s) ---------------------- Kernel End ------------------------- Because I had not previously noticed this error, I was thinking that the video problem was hardware -- I was starting to look for a replacement video card. Now I'm not so sure. What do these kernel errors mean? Where are they logged? Are the problems related (kernel errors & video problem)? Any opinion whether this is a hardware or software problem? TIA, Bill

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P4 Socket 478 Heatsink Retention Bracket
by Mike 12 Dec '06

12 Dec '06

Woah, that is a mouthful huh? I am in dire need for one of those brackets. Does anyone have a spare? I have googled it and its about 1.50 part, but 8 bucks to ship. Go figure. I was wondering if anyone had one they could bring tomorrow night. It looks like this: http://tekgems.com/Products/tg-et-11492-cpu-wrp4-16w1-51.htm Cheers, Mike -- They who would give up an essential liberty for temporary security, deserve neither liberty or security --Ben Franklin

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Linux/C++/C/Java developer opportunity
by Jrcalareso＠aol.com 12 Dec '06

12 Dec '06

I'm doing a search for a client that needs a software engineer who will be working on design and implementation of software application solutions for Linux based, next generation communications products. This is an intermediate to senior level role (salary range tops out in the $80's, plus excellent benefits and work environment). Location is 495 area. Qualifications/Experience 3-8 years of industry experience. Must be strong in C++ and/or ('C') programming, JAVA and Linux program development. Knowledge and experience in the areas of IP Protocols, routing technologies, LAN, WAN Remote Access or Security are pluses as is knowledge of the kernel mechanisms and kernel development. To be considered, please forward your credentials in the strictest confidence to Joe Calareso (_jrcalareso(a)aol.com_ (mailto:jrcalareso@aol.com) ,) retained technical search consultant. All responses will be acknowledged. (mailto:wlug@mail.wlug.org)

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REMINDER: Meeting Wed 7:00 PM
by Andy Stewart 12 Dec '06

12 Dec '06

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 HI gang, Its time for a WLUG meeting - coming up on Wednesday, Dec 13th, at 7:00 PM in the Access Grid Room on the WPI campus in Worcester, MA USA. WLUG member Jamie Guinan will be our guest speaker, and the meeting topic will be FUSE (file systems in user space). You can find out more here: http://fuse.sourceforge.net/ I'll bring a couple of things for the no-cost raffle, and we can adjourn to the pizza restaurant after the meeting. Oh yeah, there will be light refreshments at the meeting. See ya there! Andy - -- Andy Stewart, Founder Worcester Linux Users' Group Worcester, MA, USA http://www.wlug.org -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (GNU/Linux) Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org iD8DBQFFfiguHl0iXDssISsRAlovAJ9soWBvR9yuFs3ru5Rt51/Y5EXp2QCdH0Ee 7ZAIuObeDFW34xzGs65Zjsg= =WVD5 -----END PGP SIGNATURE-----

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Re: [Wlug] Fedora Core 6 kernel source???
by ken jones 10 Dec '06

10 Dec '06

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Re: [Wlug] Fedora Core 6 kernel source???
by ken jones 09 Dec '06

09 Dec '06

Frank Sweetser wrote, "That's because they're 3rd party packages from atrpms.net that neither fedora nor redhat have anything to do with." I was told (incorrectly, I guess)that Fedora had incorporated ALSA. What sound card support does Core 6 offer? Is my problem just that the SoundBlaster Live is unique? Ken Jones

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